What it is: A market failure occurs when the supply of a good or service is insufficient to meet demand. This results in an inefficient distribution of resources among market participants. Under free market conditions, prices are determined almost exclusively by the forces of supply and demand.
NuvaRing is currently under the protection of a patent that prevents any generic NuvaRing from being manufactured in the United States. The first patent for NuvaRing currently expires in April 2018.This is the earliest possible date that a generic version of NuvaRing could become available. However, there are other circumstances that could come up to extend the exclusivity period of NuvaRing beyond 2018.This could include such things as other patents for specific NuvaRing uses or lawsuits.uvaRing is currently under the protection of a patent that prevents any generic NuvaRing from being manufactured in the United States. The first patent for NuvaRing currently expires in April 2018.
1 Use another birth control method, such as male condoms with spermicide, until the new NuvaRing has been used for 7 days in a row, following one of the two options below: 2  Option 1. 3  Insert a new ring right away to start your next 21 Day NuvaRing use cycle. Insert 1 NuvaRing in the vagina and keep it in place for 3 weeks (21 days). 2  Remove the NuvaRing for a 1 week break (7 days). 3  During the 1-week break (7 days), you will usually have your menstrual period.